I was quite surprised when my Sarotech USB 2.0 box with an 120 Gb IBM HDD inside worked in Ubuntu (What hotplug or kernel patch did Ubuntu use?) With this device, I have stumbled on various 2.6 kernels like Fedora Core 2 and 3, and Mandrake 10.
Please see comment #1 at http://bugzilla.redhat.com/bugzilla...g.cgi?id=127059
and http://fedoraforum.org/forum/showthread.php?p=107817
As for the bugzilla address I mentioned, here is the text about USB 2.0 device not working with their FC2 and FC3 kernel (but works in Ubuntu, both Warty and Hoary)
Additional Comment #1 <https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=127059#c1> From Timothy Ha on 2004-07-03 08:57 -------
Nearly same problems with a Sarotech USB 2.0 HDD device.
1) WHEN I TURN ON THE USB EXTERNAL HDD:
usb 4-3: new high speed USB device using address 2 Initializing USB Mass Storage driver... scsi0 : SCSI emulation for USB Mass Storage devices Vendor: Model: Rev: Type: Direct-Access ANSI SCSI revision: 02 Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 0 USB Mass Storage device found at 2 usbcore: registered new driver usb-storage USB Mass Storage support registered. SCSI device sda: 241254721 512-byte hdwr sectors (123522 MB) sda: assuming drive cache: write through sda:
At this step the computer seems to do nothing more. The red led on USB HDD is lighted. Some activity happening.
2) LSMOD shows
# /sbin/lsmod Module Size Used by sd_mod 16472 2 usb_storage 53576 1 ehci_hcd 22916 0 sg 27680 0 scsi_mod 91984 3 sd_mod,usb_storage,sg vfat 9984 1 fat 33600 1 vfat uhci_hcd 24472 0 ext3 103656 3 jbd 40728 1 ext3 .....
3) NOTHING HAPPENING, UNTIL I TURN OFF THE USB DRIVE. DMESG SHOWS ERRORS LIKE:
Buffer I/O error on device sda, logical block 56918292 SCSI error : <0 0 0 0> return code = 0x70000 end_request: I/O error, dev sda, sector 56918293 Buffer I/O error on device sda, logical block 56918293 SCSI error : <0 0 0 0> return code = 0x70000 end_request: I/O error, dev sda, sector 56918294 Buffer I/O error on device sda, logical block 56918294 SCSI error : <0 0 0 0> return code = 0x70000 end_request: I/O error, dev sda, sector 56918295 Buffer I/O error on device sda, logical block 56918295
sda2
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 updfstab: Using deprecated /dev/sg mechanism instead of SG_IO on the actual device inserting floppy driver for 2.6.6-1.435 usb 4-3: USB disconnect, address 2
------- Additional Comment #2 <https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=127059#c2> From Timothy Ha on 2004-07-03 08:59 -------
My HDD works for Fedora Core 1 and Windows XP with no problems. It has external power, not powered from USB bus.
